CN105575229A - Horizontal loading and guiding device for multilayer and multispan static model - Google Patents

Horizontal loading and guiding device for multilayer and multispan static model Download PDF

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Publication number
CN105575229A
CN105575229A CN201610057491.2A CN201610057491A CN105575229A CN 105575229 A CN105575229 A CN 105575229A CN 201610057491 A CN201610057491 A CN 201610057491A CN 105575229 A CN105575229 A CN 105575229A
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loading
servo
load
multispan
multilayer
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CN105575229B (en
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陈廷国
吴江龙
徐康乾
孙良君
王四杰
张震
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YANTAI XTD TEST TECHNOLOGY Co Ltd
Dalian University of Technology
Yantai University
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YANTAI XTD TEST TECHNOLOGY Co Ltd
Dalian University of Technology
Yantai University
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    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/08Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
    • G09B23/10Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies

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  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
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  • Theoretical Computer Science (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The invention provides a horizontal loading and guiding device for a multilayer and multispan static model. The horizontal loading and guiding device comprises the components of a servo loading device, a horizontal loading guiding bracket, a distributive girder, a reaction wall connecting board, a load balancing cylinder, a pressure balancing cylinder oil supply system and a tension sensor. The front end of the electric servo loading device is connected with the distributive girder. The distributive girder is mounted on the guiding bracket through a linear guiderail and a slide block. The back end of the electric servo loading device is mounted on the reaction wall connecting board, wherein the mounting position can be continuously adjusted. One end of the load balancing cylinder is hinged with the distributive girder, and the other end is connected with the pulling tension sensor. The pressure balancing cylinder oil supply system is connected with the electric servo loading device and supplies power to the electric servo loading device. The horizontal loading and guiding device applies multiple horizontal loads on a multilayer and multispan static power steel structure model, thereby ensuring horizontal loading direction and equality of the multiple loads. Furthermore the multiple loads can be distributed through the distributive girder. When the distributive girder is used for realizing balance, cooperation with the guiding device is required. The horizontal loading and guiding device can realize synchronous loading on a plurality of points and reverse loading on different points.

Description

A kind of multilayer, multispan Static Model horizontal addload and guide piece
Technical field
The invention belongs to civil engineering experimental teaching field, relate to a kind of multilayer, multispan Static Model horizontal addload and guide piece.
Background technology
Institution of higher learning's civil engineering undergraduate stage, the various structures systems such as framed structure, frame-shear-wall structure, tube-in-tube structure can be related in the course such as " Architectural Structure Experimentation ", " Designing Structures of High Rising Buildings and calculating ", " building structure aseismatic ", allow student carry out simple knowledge to the compositing characteristic of various structural system, relative merits and computing method etc. mainly through the mode of theory teaching at present.
Experimental teaching is more and more general in institution of higher learning's undergraduate course teaching, experiment about multilayer, multispan, various structures system is incorporated in education experiment, student is by applying horizontal loading and measure displacement and strain and calculated stress, applying identical load carry out Displacement Ratio comparatively these two kinds of test methods to various structures system to a certain structural system steel construction model, the understanding to different structural-system can be deepened, contribute to skilled grasp and the application of institute's theory.
Summary of the invention
For the deficiency in undergraduate's experimental modelling in prior art, the invention provides a kind of steel construction model horizontal loading apparatus about multilayer, multispan different structural-system, this device is mainly used in applying multiple spot horizontal loading to multilayer, multispan static(al) steel construction model, guarantee loading direction level and multiple spot load etc. are large, multipoint excitation is balanced by distribution beam, need support the use with guide piece when adopting distribution beam balanced, can realize to maximum four layers every layer 4 totally 16 points synchronously load, also can realize difference Opposite side loading.
In order to achieve the above object, technical scheme of the present invention is:
A kind of multilayer, multispan Static Model horizontal addload and guide piece, comprise servo-loading unit, horizontal addload guiding trestle, distribution beam, counter force wall web joint, load balance oil cylinder, equalization of pressure oil cylinder oil supply system and pulling force sensor.
Described servo-loading unit 1 adopts touch-screen as input control, display unit, and servo-loading unit 1 front end is connected with distribution beam 3, and distribution beam 3 is arranged on guiding trestle 2 by line slideway, slide block; Servo-loading unit 1 rear end is arranged on counter force wall web joint 4, and installation site can slidable adjustment.Often overlap the static load maximum output 50kN of electrical servo charger, impulse stroke 150mm.Servo-loading unit adopts the load mode of driven by servomotor electric cylinder, can carry out load servocontrol and load and displacement servo controlled loading, can carry out work by separate unit servo-loading unit 1, also can the work of multiple stage servo-loading unit 1 synchronous coordination.
Described horizontal addload guiding trestle 2 adopts door type structure, comprises column, crossbeam and linear guide, and horizontal addload guiding trestle 2 is slidably mounted on conduit 8; Stem height meets modulus, and totally two are positioned at the both sides of guiding trestle 2; Crossbeam is connected with two edge columns by bolt, and highly press modulus residing for crossbeam adjustable, linear guide all can be installed in crossbeam end face and bottom surface.
Described distribution beam adopts class box-beam structure, and distribution beam length has plurality of specifications, the longlyest installs 4 load(ing) points, the shortlyest installs 1 load(ing) point, and the distribution beam of different length can be used alone also capable of being combined use, implementation model tension and compression asymmetrical load.
Described counter force wall web joint is two-way base plate, T-slot structure.Counter force wall web joint has cross track and vertical track, cross slide way is connected with servo-loading unit 1, and counter force wall web joint 4 is connected with counter force wall 7 by vertical track, can vertically, horizontal adjustment position.Each cross track can be arranged an electrical servo charger 1, electrical servo charger 1 is connected with distribution beam 3, realizes some load mode such as loading, loading, 4 loadings at 2 to multilayer, the every one deck of multispan Static Model; Each cross track arranges two electrical servo chargers, by controlling to make an electrical servo charger export pulling force, another output pressure, multilayer, the every one deck of multispan Static Model is realized moment of torsion and loaded.
Described load balance oil cylinder one end and distribution beam hinged, the other end is connected with pull pressure sensor; Load balance oil cylinder maximum balanced load 50kN, equalization runs 100mm.Described equalization of pressure oil cylinder oil supply system is connected with electrical servo charger, for it provides power.Described pull pressure sensor is pillar, and range 50kN, the linearity is not more than 0.1%.
The present invention is used for applying multiple spot horizontal loading to multilayer, multispan force model steel construction model, guarantee loading direction level and multiple spot load etc. are large, multipoint excitation is balanced by distribution beam, need support the use with guide piece when adopting distribution beam balanced, can realize synchronously loading multiple point, also can realize difference Opposite side loading.
It is adjustable that horizontal addload guiding trestle installation site of the present invention is removable along conduit, beam height presses modulus.Linear guide all can be installed in crossbeam end face and bottom surface; Guide piece adopts line slideway as walking medium, have that friction factor is little, lubrication easily, low, the bearing capacity advantages of higher of frictional contact surface abrasion.Guide rail itself can bear both direction stretching, compression load simultaneously, and the loads such as four direction, be conducive to the experiment of resisting lateral load; Counter force wall web joint can ensure that loading Position is adjustable arbitrarily, can load at an arbitrary position; Multiple oil cylinder can divide into groups to adjust pressure, to realize the effect that multiple spot loads simultaneously.
Accompanying drawing explanation
Fig. 1 is horizontal addload guiding trestle and distribution beam front elevation;
Fig. 2 is counter force wall web joint front elevation.
Fig. 3 is the multilayer of an installation electrical servo charger, multispan Static Model loads and guide piece side view;
Fig. 4 is the multilayer of installation four electrical servo chargers, multispan Static Model loads and guide piece side view;
Fig. 5 is multilayer, multispan Static Model loads and guide piece vertical view;
In figure: 1 servo-loading unit; 2 horizontal addload guiding trestles; 3 distribution beam; 4 counter force wall card extenders; 5 load balance oil cylinders; 6 pull pressure sensor; 7 counter force walls; 8 conduits.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described further.The concrete installation of experimental provision and embodiment as follows:
Electrical servo charger 1 front end is connected with distribution beam 3, and distribution beam 3 is arranged on guiding trestle 2 by line slideway, slide block, and rear end is arranged on counter force wall 7 by counter force wall web joint 4, and installation site can regulate continuously.Load balance oil cylinder 5 can balanced tension compression bidirectional load, maximum balanced load 50kN, one end and distribution beam 3 hinged, one end is connected with pull pressure sensor 6.
Loading frame 2 installation site is removable along conduit 8, and it is adjustable that loading frame 2 middle cross beam height presses modulus, and linear guide all can be installed in crossbeam end face and bottom surface.Main member installed surface all carries out machine work, and roughness is not more than R3.2, evenly processes by 100mm modulus, and guiding height need be corresponding with test specimen node height.
Distribution beam 3 adopts class box-beam structure, and adopt length combination collocation, the longest installs 4 load(ing) points, can install altogether 16 load(ing) points for four layers, can carry out tension and compression asymmetrical load.
Counter force wall web joint 4 is four layers of track laterally, and the parallel orbit be fixed on counter force wall 7 with four is connected.Counter force wall web joint overall dimensions is 2750 × 1750 × 100mm, bearing capacity 200kN.Each cross track is arranged electrical servo charger 1 combine with length distribution beam 3 respectively can realize multilayer, the every one deck of multispan Static Model any load, 2 load, 4 the load mode such as to load.Four actuator are arranged in the loading that four tracks can realize 16 any combination; Each cross track arrange two electrical servo chargers and controls to export pulling force and pressure respectively, certain one deck moment of torsion can be realized and load.
Multiple load balance oil cylinder 8 can divide into groups to adjust pressure, to realize the effect that multiple spot loads simultaneously.

Claims (2)

1. a multilayer, multispan Static Model horizontal addload and guide piece, it is characterized in that, this device comprises servo-loading unit (1), horizontal addload guiding trestle (2), distribution beam (3), counter force wall web joint (4), load balance oil cylinder (5), equalization of pressure oil cylinder oil supply system and pulling force sensor (6);
Described servo-loading unit (1) front end is connected with distribution beam (3), and rear end is arranged on counter force wall web joint (4), and installation site can regulate;
Described horizontal addload guiding trestle (2) adopts door type structure, comprises column, crossbeam and linear guide; Horizontal addload guiding trestle (2) is slidably mounted on conduit (8), and stem height meets modulus, and totally two are positioned at both sides; Crossbeam is connected with two edge columns, and beam height presses modulus adjustment, and linear guide can be installed in crossbeam end face and bottom surface;
Described distribution beam (3) adopts class box-beam structure, is arranged on guiding trestle (2) by line slideway, slide block; Distribution beam (3) length has plurality of specifications, the longlyest installs 4 load(ing) points, the shortlyest installs 1 load(ing) point, the distribution beam of different length by being used singly or in combination, implementation model tension and compression asymmetrical load;
Described counter force wall web joint (4) is two-way base plate, T-slot structure, counter force wall web joint (4) there are cross track and vertical track, can vertically, horizontal adjustment position, counter force wall web joint (4) is connected with counter force wall (7) by vertical track, is connected with servo-loading unit (1) by cross track; Each cross track installs an electrical servo charger (1), electrical servo charger (1) is connected with distribution beam (3), realizes some loading, 2 loadings, 4 loadings to every one deck of multilayer, multispan Static Model; Each cross track installs two electrical servo chargers (2), an electrical servo charger (1) exports pulling force, another electrical servo charger (1) output pressure, realizes moment of torsion to every one deck of multilayer, multispan Static Model and loads;
Described load balance oil cylinder (5) one end and distribution beam (3) hinged, the other end is connected with pull pressure sensor (6); Described equalization of pressure oil cylinder oil supply system (6) is connected with electrical servo charger (1), for it provides power.
2. a kind of multilayer according to claim 1, multispan Static Model horizontal addload and guide piece, it is characterized in that, described servo-loading unit adopts the load mode of driven by servomotor electric cylinder, load servocontrol can be carried out load and displacement servo controlled loading, separate unit servo-loading unit (1) carries out work, or multiple stage servo-loading unit (1) synchronous coordination work.
CN201610057491.2A 2016-01-27 2016-01-27 A kind of multilayer, multispan Static Model horizontal addload and guider Expired - Fee Related CN105575229B (en)

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CN106353054A (en) * 2016-09-23 2017-01-25 大连理工大学 Multi-span beam structure experimental model and experimental method
CN106705926A (en) * 2016-12-14 2017-05-24 中国燃气涡轮研究院 Static standard strain loading device based on simply-supported pure bending beam and method thereof
CN109357852A (en) * 2018-10-22 2019-02-19 成都理工大学 A kind of static(al) rack and Quintic system shock test device
CN110057611A (en) * 2019-04-25 2019-07-26 宝业集团浙江建设产业研究院有限公司 A kind of adjustable structure mechanical test platform and its processing method, test method
CN110206077A (en) * 2019-05-31 2019-09-06 天津大学 A kind of blower foundation is vertical and multidirectional horizontal addload model test apparatus
CN112730080A (en) * 2020-12-24 2021-04-30 大连理工大学 Uniform distribution loading device for steel structure test
CN114813349A (en) * 2022-04-29 2022-07-29 南通市建筑科学研究院有限公司 A self-adaptation detector for prefabricated component structural performance detects

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106353054A (en) * 2016-09-23 2017-01-25 大连理工大学 Multi-span beam structure experimental model and experimental method
CN106353054B (en) * 2016-09-23 2018-10-16 大连理工大学 A kind of multispan beam structural experiment model and experimental method
CN106705926A (en) * 2016-12-14 2017-05-24 中国燃气涡轮研究院 Static standard strain loading device based on simply-supported pure bending beam and method thereof
CN106705926B (en) * 2016-12-14 2019-03-19 中国燃气涡轮研究院 Static criteria strain loading device and method based on freely-supported pure camber beam
CN109357852A (en) * 2018-10-22 2019-02-19 成都理工大学 A kind of static(al) rack and Quintic system shock test device
CN110057611A (en) * 2019-04-25 2019-07-26 宝业集团浙江建设产业研究院有限公司 A kind of adjustable structure mechanical test platform and its processing method, test method
CN110057611B (en) * 2019-04-25 2024-09-27 宝业集团浙江建设产业研究院有限公司 Adjustable structural mechanics test platform and processing method and test method thereof
CN110206077A (en) * 2019-05-31 2019-09-06 天津大学 A kind of blower foundation is vertical and multidirectional horizontal addload model test apparatus
CN112730080A (en) * 2020-12-24 2021-04-30 大连理工大学 Uniform distribution loading device for steel structure test
CN114813349A (en) * 2022-04-29 2022-07-29 南通市建筑科学研究院有限公司 A self-adaptation detector for prefabricated component structural performance detects

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